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-rw-r--r--iptables/xtables-save.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/iptables/xtables-save.c b/iptables/xtables-save.c
index f30867cf..abd840af 100644
--- a/iptables/xtables-save.c
+++ b/iptables/xtables-save.c
@@ -130,6 +130,10 @@ xtables_save_main(int family, const char *progname, int argc, char *argv[])
h.family = AF_INET6;
xtables_set_nfproto(AF_INET6);
break;
+ default:
+ fprintf(stderr,
+ "Look at manual page `xtables-save.8' for more information.\n");
+ exit(1);
}
}